Combined type-writing and computing machine.



G. o. DEGENER. Y v COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED DCT. 3. 1911.

Patented Dee. 19, 1916.

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|NvENTon{ ATTORNE mw. M

G. 0. DEGENER.

COMBI-NED TYPE WRITING AND COMPUTING MACHINE.

APPLlcATloN FILED ocT. a. 1911.

Y1,208,754. Patented Dea 1916.

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5% OU MW w BVM W G. 0. DEGENER. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED OCT. 3. 1911.

Patented Deo. 19,1916.

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UNITED sTATEs PATENT oEEIoE.

GUSTAVE 0. DEGENER, OF NEW YORK, N. Y., ASSIGNOR T UNDERWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, N. Y., A. CORPORATION OF NEW YORK.

COMBINED TYPE-WRITING ANI) COMPUTING MACHINE.

y T 0 all whom t may concern.'

Be it known that I, GUSTAVE O. DEGENER,

' a. citizen of the United states, residing in New York city, in the county of New York and State of New York, have invented certain new .and useful Improvements. in Combined Type-Writing and Computing Machinas, of which the following is a specification.

`This invention relates to a fractional computing mechanism in connection with combined typewriting and computing machines ofthe Underwood type.

It has been found in connection with certain classes of work where goods are measured in fractions of a unit, say eighths, quarters, halves, etc., or where goods are sold at fractions, other' than decimal, of a cent or dollar, that a need has sprung up for a computing machine which will take care of a fraction of a unit automatically, and com-H pute it with the whole numbers. If, for eX-. ample, in a dry goods store it is desired to bill a person for a number of items of cloth involving yards and fractions of a yard, with prices in cents and fractions of a cent, it is desired to have al machine which will automatically take care of the fractions of yards and cents, and give the total in yards,

vdialliave rotated but eight-tenths of a revo- `and total cost. l

` .It is therefore an object of this invention to provide mechanism in a combined type- .writing and computing. machine which will calculate automatically in fractions as well as whole numbers concomitantly with the typewriting.

In the embodimentused tol illustrate this linvention, a member termed 'the fmaster wheel is given a predetermined rotation at the striking of each numeral key, the eX- tent Vof which depends on the particular v numeral key struck. This master wheelis movable concomitantly with the carriage, which, as usual, advances step-b'rystep during the striking of the keys, so as to bring the master wheel successively into operation with certain of a series of gears adapted toy operate a series of numeral dials through linterconnecting gearing.l ,In this type of machine, it has been customary to use dial wheels divided decimally, that is, into ten Specication of Letters Patent.

Patented Dec. 19, 1916.

Application filed October 3, 1911. Serial No. 652,532. a

Apredetermined rotation of the master Wheel at the actuation of certain of the numeral keys. 1n the case of the decimal dial wheels, the ratio between the gears operated by the master wheel and the gears carried by the decimal dial wheel is one. It is, necessary however to have, in connection with the gear operatedby the master wheel and the gear carried by the fraction dial wheel, a ratio other than one, according to the division of the fraction dial wheel. ratio is ten-to eight, inasmuch as the fraction dial wheel is divided'into eight parts corresponding to eighths of a. unit. That is to say, the fraction dial wheel will be rotated a complete rotation when the master wheel and the gear operating the fraction of a revolution through the intermediaryA of connecting gearing. It so happens that the gear., carrying the special tooth is located in alinement with the gears operated directly by the master wheel and is therefore provided with a central opening to permit the passage of the master wheel and yet is free from internal teeth so as to be independent of operation by the I'master wheel.

Inasmuch asthe gears operated by the In this case, the,l

master wheel are usually supported by the i internal teeth engaging the arbor of the master wheel, it is desirable to support this extra gear bearing` the special tooth in some other way, which is accomplished by providing a partition connected to a' stem which A feature to be noted is that the same keys are used both for wholefnumbers and vulgar fractions, of course with the intervention of a shift key to change from whole numbers to vulgar fractions, and vice versa. It will be seen that the whole number indicates the numerator of each fraction, of which, the number .of parts into which the fraction dial wheel is divided is the denominator. This permits the use of any number of the numeral keys for the purpose of calculating both whole number and vulgar fractions merely requiringa. change in ratio between the master wheel driven gear and the gear carried by the fraction dial with the change in the type on the typebar.

Other features and advantages will hereinafter appear.

Referring to the drawings, Figure l is a side view in elevation with parts removed and broken away to simplify the showing and show the underlying structure. Fig. 2 is a fragmentary front view in elevation of the computing head with the casing broken 1 away to'show the mechanism beneath the same. Fig. 3 is a fragmentary perspective y View of the fraction dial wheel, uwith the master Wheel operated gear operating a certain part of the gearing for carrying over a complete rotation of the fraction dial Wheel. Fig. 4 is a detail view of the partition for supporting the special carrying gear. Fig. 5 is a diagrammatic view, showing the relation yof the keys to their respective type blocks. Fig..6 is a detail vertical section of the computing head taken/through the fraction dial. Fig. 7 is a section taken at right angles to the section in Fig. 6. Fig.

'8 is a detail perspective View of the key-controlled mechanism for operating the controlling mechanism which determines the extent of rotation of the master wheel according to the particular numeral key struck.

In the Underwood combined typewriting and adding machine, letter keys 1 and gure keys 2 depress levers 3 having returning springs 4, and connected, by means of belly cranks 5, to type bars 6, .which are swung up to strike against the front face of a In order that platen 7. The type bars are pivoted upon a fulcrum wire 8 and have heels 9 to press rearwardly universal "barI 10,`"ivhich is mounted onv a frame ll'to operate dogs 12, 13, which coperate with an escapement wheel 14 connected with a pinion 16 Kto mesh'with a rack 17 uppn a qcarriage 15 which carries said platen 7; the" carriage being driv'en'by a spring barrel 18. Each figure key 2 is also connected by a hook 19, a lever 19a, and a link 20, (F ig. 8)',toa lever 21 pivoted'at* 22 and forming onev of a series of levers groupedradiallyyand each carrying a jack '23 to displace or set44 up Vcomputing pins 24 in a power-driven Wheel 25. This wheel is' driven by alconstantly rotating motor 2,Yconnected'by "gears 27, l28,` 29, 30 and 31, to said wheel 25, and tending constantly to turn the latter; a friction' clutch 32 being interposed between the `motor and the wheel The pins 24, whenprojected, are restrained by a four toothed pinion 33, which is engageable `bythe pinsand Xed to an escapement` wheel 34,Fig. l,"`which is controlled by dogs 35, 36, fixed up'on ariock shaft 37, which is'also controlledbylthe figure keys 2; `each of' the levers'21 'having an arm 38 to bear against a disk 39, which is connected to a lever 40 having a 'pi-vot between its ends at 41, andconnected' by link 42 to an arm 43 fixed uponrock shaft 37.

When any key l2 is depressed, itaocks the shaft 37 in one direction, allowing' the teeth `of wheel 34 to slip oif from the dog 35 onto the dog 36; and when the key returns,"the shaft is rockedv in thefother direction by means of spring 44, Fig. 8, thereby enabling the escapement wheel 34 to slip olf of the dog 36, so that the pincarrying wheel 25 is permitted to rotate until the next 'projectedpin thereon comes into engagement with the pinion 33.` After each pin is used, it is restored to normal position by suitable means, not shown. Q i

To the pin carrying wheel 25, is connectedl a shaft 45 of a master wheel 46; the connection including gears 47, 48, 49, 50, 51 and 52,v

the ylatter fixed upon the shaft ,'45, to which the master wheel 46 is 'splined The master wheel has opposite teeth to'e'ngage internal gears 54, Fig.7, formeldr'iipon computing wheels 55, Vthe latter having gears 56 meshing with gears wheels 5,8.

The rotative movement of the pin carrying wheel 25 is transmissible to "any of the dial wheels. These dial wheels are mounted in a casing `59 which 'is secured upon the framework of the machine. The master wheel 46 is connected to a tubular arbor 60, which is connected to the Vcarriage 15 of the typewriter, to move step-by-step therewith; the connection comprising a lever 61`pivoted 'midway between its ends, and connected at 57 `provided upon dial :man

its forward end to said tube 60, and at its rear end to a bar 62 which is connected to the carriage (or to a lug 63 on said bar). The master Wheel 46 travels to the right, Fig. 7, as the carriage 15 travels in letter feeding direction to the left; the Writing and adding proceeding from higher to lower denomination.

Upon each of the computing Wheels 55, is a special tens-carrying tooth 64, which once in each revolution engages and rotates a five toothed pinion 65, xed to which is an ordinary pinion 66 meshing with the gear 56' of next higher denomination, whereby tens are' carried upon the latter.

To assist at the tens-carrying operation, there is provided a multilated assisting gear 67 which comprises five sets of teeth at e ual intervals. The mutilated gear 67 whic is fixed to the pinions 66 and 65, is arranged to be engaged by one of a series of constantly rotating pinions 68, which are xed upon a shaft 69, the latter being connected to the constantly rotating motor 66 by means of a train of gearing designated generally as 7 O. The special tooth 64 on the computing wheel rotates the multilated gear 67 enoughto engage it with the constantly rotating pinion 68; the latter thereupon drives the mutilated gear, with its two connected pinions, until the tens-carrying operation issubstantially completed; a spring detent 71 snapping into a seat 72, of w ich five are provided upon the mutilated gear 67. A fraction dial Wheel 7 3 is preferably'divided into eight parts, and is connected t0 turn as many eighths of a revolution as the master wheel turns tenths of a revolution, so that when the master wheel has traveled into engagement With the fraction mechi anism, operation of any ofthe numeral keys 2 will, cause the fraction dial wheel. to rotate a corresponding number of eighths. For instance, if the numeral 3 is struck, the dial Wheel will turn three-eighths of a revolution; if 4 is struck, the dial Wheel Will lturn one-half of a revolution. The mechanism Which enables the master wheel to do this includes a special computing Wheel 74, Fig 3, and a specialigear75 in mesh therewith, and ixed to the fraction dial wheel 73; the diameters of said gears being in proportion of ten to eight, so that with every tenth of'a revolution of 74, there occurs one-eighth of a revolution' of 75 and 73;

it being designed to turn the fraction dial 73 eight steps 'for each revolution.

For driving the units Wheel 58aL one step at the .completion of each revolution of the fraction Wheel, 7 3, a-gear 76 is fixed to the :theel and meshes'with a gearv 77 similar to 55, but wholly nprovided With an internal gear lkey 54. This gear 77 is. of the same" diameter as 76, and carries a special tooth 64 'to engage the pinion 65 fixed to that pinion 66, which meshes with the units gear 55; said pinion 66 being provided with an assisting mutilated gear or pinion 67.

The detent roll 71 for the fraction dial wheel 7 3 engages a special wheel 80 similar to 66, but having no teeth, and provided with four peripheral depressions lor seats 72 for its detent roll 71. A pinion 81 fixed to the wheel 80, meshes with the gear 7 7 and hence controls the dial wheel 73. j

It will be seen that when the master wheel 46, 53, is in mesh with the fraction gear 74, as shown in dotted lines at Fig. 7, the turning of the-master Wheel shaft 45 through i detent 71 will fall into the next seat 72 on the wheel 80. Whenever the special tooth 64 on the wheel 77 operates the five toothed pinion 65, the mutilated pinion 67 is rotated into engagement with the constantly revolving pinion 68, and thereby the rotation of the mutilated pinion 67 is completed through one-fifth of a revolution, together with the pinion 66 secured thereto, thereby turning the units Wheel 58 one-tenth of a revolution. At Fig. 5, there are shown inthe upper row the figure types, and in the lower'row the figure keys which operate the saine. It will be understood that when writing fractions, the usual vshift 4key'62 isI first depressed, so that the upper case types 83 on the type blocks 84, will be printed on the paper. At the sa-me time, the master wheel must bein engagement with' the fraction wheel 74, as shownl in'dotted lines at Fig. 7. The type blocks for 8, 9 and 0 need not be provided lwith upper case characters, although this is immaterial.

-Rigidly secured to the casing 59 is a partition 85', Figs. 4 and 7, having in its lower portion a bearingf86 for the hub 0f the wheel 77, and also having a tenon 87 to -engage a mortise 88 in a base 89,'.upon which the casing' is secured.v The dial Wheels 58 turn upon a tubev 90, interiorly threaded throughout its length. A screw 91, having 'a reduced stem-92, is threaded intothe inner part of saidtube 90;` and a screw 93 has a head 94 to bear'upon one end'95 of the casing, to draw the tube 90 tightly against the partition 85; the reduced stem or' shank 92 ofsaid screw 91A4 serving as a shaft upon which the wheels 75, 76 rotate. The opposite head 96 of the casing is held in place by the headv 97y of the screw 98 threaded into the outer'end ofthe tube 90.

The dial wheel 73 may be' jof any suitable width, and may be marked with a propriete fractions in place of digits. Ot er variations may be resorted to Within the scope of the invention, and portions of the improvements may be used Without others.

Having thus described my invention, `I claim:

l. The combination with a dial Wheel, of a master wheel, and a gear comprising in ternal teeth operable by said master Wheel, a gear connected with said dial Wheel and meshing with said first-mentioned gear, said gears being of different diameters.

2. The combination with a dial Wheel, of a master Wheel, a gear operable by said master wheel, a gear connected with said dial Wheel and meshing with said rst-mentioned gear, another gear carried by said dial Wheel, and a gear of equal diameter to said last gear and meshing therewith.

3., The combination With a dial Wheel, of a master wheel, a gear operable by said master wheel, a gear connected with said dial Wheel and meshing With said first-mentioned gear, said gears being of different .diameters, another gear carried 'by said dial Wheel, and a ear of equal diameter to said 4last-mentioned gear meshing therewith and arranged beside said first-mentioned gear.

4. The `combination with a dial Wheel, of a master Wheel, a gear operable by said master "Wheel, a gear connected with said dial Wheel and meshing with said first-mentioned gear, said gears being of different diameters, another gear carried by said dial, Wheel, a gear of equal diameter to said last-mentioned gear meshing therewith and arranged beside vsaid Afirst-mentioned gear, a Wheel carried by said last-mentioned gear having quad- 4rantlydisposed depressions thereon, and ai detent adapted to engage said depressions .to hold ,said dial Wheel against accidental movement.

The combination with a units dial Wheel, of a fraction dial wheel, a master WheeL-a gear operable by said fraction dial wheel and independent of operation by said master wheel, a gear operable by said master Wheel for operating said units Wheel, and means for causing a concomitant motion of .said second mentioned gear at a certain motion of said rst mentioned gear.

6. The combination with a units dial Wheel, of a fraction dial Wheel, a master wheel, a gear operable by said'fraction dial wheel and independent of operation by said master wheel, a gear operable by said master Wheel for operating said umts Wheel, a

special tooth carried by said first-mentioned gear, a third gear operable by said tooth, a fourth gear meshing with said second-inem4 tioned gear, and means brought in play by a movement of said thirdgmentioned gear lfor rotating said fourth-mentioned gear.

7.'The combination with a units dial Wheel, of a fraction dial wheel, a master Wheel, a gear operable by said fraction dial Wheel and independent of operation by said master Wheel, a gear operable by said master Wheel for operating said units Wheel, a

special tooth carried by said firstmentioned gear, a third gear operable by said tooth, a fourth gear meshin with said second-mentioned gear, a muti ated gear connected to said third and fourth mentioned gears, and a rotating member brought in'to engagement with said mutilated gear to move said second gear and said dial Wheel by a movement of said first and third mentioned gears.

- 8. The combination with a units dial Wheel, of a fraction dial Wheel, a master Wheel, a gear operable by said fraction dial Wheel an independent of operation by said master Wheel, a gear operable by said master Wheel for operating said units Wheel, a special tooth carried by said first-mentioned gear, a third gear operable by said tooth, a fourth gear meshing with said secondmentioned gear, a mutilated gear connected to said third and fourth mentioned gears, a

rotating member brought into engagement With said mutilated gear to move said sec ond gear and said dial Wheel by a movement of said first and third mentioned gears, and

a detent for holding certain of said gears against accidental movement.

9. The combination With a units dial Wheel, of a fraction dial Wheel, a master Wheel, a gear operable by said fraction dial Wheel and independent of operation by said master Wheel, a gear operable by said master Wheel for operating said units Wheel, a special tooth carried by said first-mentioned gear, a third gear operable by said tooth, a fourth gear meshing with said second-mem tioned gear, a mutilated gear connected to said third and fourth mentioned gears, a rotatingl member brought into engagement with said mutilated ear to move said second gear and said dia Wheel by a movement of said first and third mentioned gears, and a detent for holding certain of said gears against accidental movement; said mutifv lated gear having depressions intermediate the teeth thereon engageable by said detent. 10. The combination with a dial Wheel, of a pair of gears secured to said dial Wheel so as to rotate therewith, a gear meshing With one of said gears to drive said dial Wheel, 'a master wheel connectible to said last-mentioned gear, so as to rotate the same, a fourth gear driven by the other of said gears connected to said dial Wheel and having a special tooth thereon, va units ldial wheel, a gear drivable by said master Wheel for rotating said units dial Wheel, and means brought in play by said special tooth for carrying a completerotation ,of said fraction dial wheel to said units dial wheel through the intermediary of said gear` driving sald units dial wheel.

11. The combination with al plurality of vdial wheels, of means for supporting said -dial wheels, another dial wheel, a .stem proecting from said wheels for supporting said last-mentioned dial wheel, a gear operativel lconnected to said last-mentioned dial whee and a partition mounted on said stem for supporting said gear.

12`.'The combination. with a plurality of ,dial wheels, of means for su porting said dial wheelspanother' dial whee a stem pro- `jecting from said wheels for supporting said ast-mentioned dial wheel, ar gear operatively connected to said last-mentioned dial wheel,

[anda partition mounted on said stem for il' "supportin said gear; said partition having a terion t ereon and a base engaging said ton to support said partition.

' 13. The combination w1th a tube, of a' series of dial wheels mounted on said tube,

a stem projecting from one side of said tube,

a dialr wheell mounted on said Stem, apar `tition .having an opening therein mounted |on said stem, and a gear operable by said dial wheel having a slot extending in an opening in said partition, so that said gear may be supported by said partition.

114.- The combination with a tube, said tube being screw-threaded, of a screw en- Asaid tube and having a stem projectmg from one side thereof, dial wheels mount-4 ed on said tube, a dial wheel mounted on said stem, a screw having a head' mounted in I .said stem, and a screw having a head mountv ed insaid tube.-

15. The combination with a tube, said tube being screwjthreaded, of a screw enga 'ng said tube and having a stem projecting rom one side thereof, ial wheels mounted on said tube, a dial Wheel mounted on said stem, a screw having a head mounted Iin said. stem, a screw having a head mounted in said tube, a gear wheel operable by said last mentioned dial wheel, a partition having a plurality of openings therein through one of which extends said-stem, a portion of said gear extending through the other of said openings, so that said partition supports -said gear, and a base for concomitantly securing said partition. v

16. The combination-with a plurality of gears `havin central openings, of a master wheel mova le through said openings, cer- I tain of said (gears having inwardly projecting teeth a pted to engage said master wheel, lan arbor lconnected to said master wheel and movable therewith through said gears, one of l'said gears being devoidof internal teeth,'and a partition having an o ening therein forming a bearing'through w ich a portion of said 1astment1oned gearl ex- 1 wheeLcomprising numerals to another base,

tends so asv to support said last-mentioned gear. l

17. The combination with a typewriting mechanism including numeral keys and type bars, certain of said numeral keys and type bars being adapted to cause the printing of both who e numbers and fractions, a master wheel, means for imparting' to said master wheel a definite rotation yfor each key, whether operating-to print afraction or a whole number, a series of dial wheels, and computing wheels com rising internal teeth arranged to be engage by sald master wheel, and said external teeth enga by said dial wheels for actuating certaln v'of said dial wheels to calculate in whole numbers "when said type bars print whole numbers, and also actuating certain of said dial wheels to calculate in fractions when said type barsprint fractions.

18. The combination with a dial wheel, of a master wheel, and a gear operable by said master wheel, a gear connected with said dial wheel and meshing with said firstmentioned gear, said gears being true, natural, and of different diameters.

19. In a computing machine, the combination with a master actuator, of a dial wheel comprising numerals to one base, a dial a gear on each dial wheel, a driving wheel meshing with each of said dial wheel gears arranged to be engaged serat'i/m b said master actuator, a carry-over device or the lirst-named dial wheel operated by its driving wheel, and an idle gear meshing with the dial wheel to said second base operating a carry-over mechanism for said secondnamed dial wheel.

20. In a computing machine, the combination with a dial wheel to one base,`of a -dial wheel to another base, a gear wheel meshing with a gear on said first dialv wheel, a gear having a different number of teeth meshing with a lgear on said second dial wheel, a carry-overl device o erated by fsaid firstmentioned" gear, an i' e gear driven by said' second dial wheel, and a carry-over 'device operated by said second gear to carry a number into the first dial wheel.

21. In a computing machine, the combination with a dial wheel to one base, of a dial wheel to a second base, a driving wheel meshing with said first dial wheel, a drivln wheel meshing with said second dial whee having a different number of teeth,-a master actuatorfor engaging said driving wheels serati/m, 'an idle gear driven the second dial wheel, a carry-over mech'anis'r'nv driven by said idle'wheel arranged to carry into said iirst-named dial wheel, and a carry-opfer device for said first-named dial wheel driven by the driving wheel thereof. l

22, In a computing machine, the `eombi- Whee l, a master wheel for-rotatingsaid com- 65 lxdialivheel'fto'a'secbnd'base, 1a driving wheel' puting wheels successively and decimally, meshing with said irst dial wheel, a driving a train of gearing between said decimal dial -tvhee1 .having a different number olf teeth wheel `and itscomputing WheeLfa train of Sgmeshing-with sai'd secondi dial wheel, an acgearing'f between Said ultra-.decimal dial ,tuator .arranged to engage `said ydriving wheely` andits computing wheel, a supplewheelsvrer'fitim,an idle wheel meshin with mentaryj `comput ing Wheelintermediate said gear onsaid dial"wheelto the secon base, first-mentioned computing avheels, a tram f an alirring and carrfylig'device operated'by of gearing `between saidultra-decimal dial V? `saididl'e gear, and? ari alining 'and carrying wheel and said;` supplementary computing devicefor" saidffrst dial wheeloperated by wheel, 'and a carry-over mechanism for the dri\f`fing`wh eel meshing therewith. transmitting complete rotations of v said A 123.In"acomputinginachinm the combiultra-decimal dialw'vheelto saidgdemical dial h-nationwithF adial-wheel to on'ebase, 'of a wheel (dir o'ughthefintermediaryfof.said sup- I dialwhee'l toanother base, a driving Wheel plementary ycomputing wheel, said suppleaforls'aid 'irstvdiah whehfa'driving Wheel menta "c'oinputing -wheel being free from having a dier'entlhumber of teeth for said subservience tosaid m'aeter` wheell so as to second dial wheelago'ther teeth on each of be silentas'tocomputing. l'said'driving Wheelsidentical 'in number on 27.` The-combination with nation with a dial wheel to one base, of a a pair of adthe two" Wheels, anfactuatorarranged toenjacentwdial wheels, of a computing wheel gage said driving Wheels bytheir teeth'idenfor rotating each ofsaid dial wheels, a masy g i tica-1 in number; 'an'idle wheel 'driven by the ter wheel for driving said computing Wheels "dialwheel onsaidsecond baSe,-a carry-over. garantira, a partition located `between and mechanism VAdriven by said idle wheel," and a ranged adjacent said decimal dial lwheel so ae to be of the next lowerjorder, a computing wheel fory saiddecimal' dial Wheel, a computing Wheel fo`r Asaid"1` 1ltra ilecin1al dial vseparating Said dialA wheels, and Van idle thereon to compute decimally' and others of whlchhave numbers thereon to compute ultra-declmally, ofA a Aseries of computing wheels. ya decrnal'` train' ofv gearingv between carry-over mechanismldriven bythe driving computing wheel interposed between ,said

`v`.wheel of saiddial wheel to the tiret base.v Ifirst -mentic'ned computing wheels and 90 24. In a computing machine, the combi- `formed tffbebeycndthe reach of said masnation with a: dial Iiwheel to` one: base, of a ter wheelsoae to be unaffected thereby. dial- Wheel to another base,` adr'iving wheel 2S, Thefcombination with a pair vof adfor saidrst dial wheeli, driving'wheel for "jacent dialwheels, of yan activey `computing y said ysecond dialy w'heel'having a diierent wheel fordriving each ofsaid dial wheels, 95 fnuinber of teeth, anidle wheel formadas va master actuating mechanism .for vdriving sleeve on said second driving wheel, a carrysaid com 'uting wheels seriatz'm, said com- `over mechanism forsaid second dial wheel puting wiieelshaving means toengage said operated by said idlesleeve, and a carrymasteractuating mechafuismiboth to ybe. :i

over mechanismfor the first dial'wheel op'- 'driven thereby and to be supported thereby 100 erated by itsdrivingwheel. when not driven, an idle computingWheel v25. Thecombination with adecimal dial interposed` between said active computing wheel, of an ultra-decimal dial 'wheel arwheels, and a specialsuppontffor said vidle 40 ranged adjacent said decimal dial wheelso computingwheel for holding Said.idlecom-gy as to be of the next lower order,` a computing puti'ngwheel'qin place independentlyy of said 1.95 Wheel for said decimal'dial'wheel, a commaster a ct` 1'1 ati 1 1g lmechafnisln.. i puting Wheel for said ultra-decimal dial 29. The` *jombination ivithia s eriee .ofxdial Wheel, a'master wheelfor rotating said comwheels, vrseine of which have numbers thereputing wheels successively and lfilecimally, a onto compiutev decimally andothersof which train `of gearing between said decimaldial have numbers theronl to vcompute `ultra- 110 i wheel 'and its' 'computing' wheel, av train of decimally,` serfiesof computing Wheels,

gearing Vbetween ultra-decimal' dial a decimall train of gearingfbetween said comwheel and its compr'itingwheel, suppleputing wheels and such of saididial wheels mentary computingwheelintermediate'saidv as are tocompute decimally, and an ultrairst -mentioned coniputiig Wheels, a train decimal trainkof gearing between said com- 115 of gearing between saidnltra-decimal dial puting Wheels and such of saididial Wheels Wheel and `said 'supplementary computing as are to compute ultra-decimally, said wheel, andl a carryovermechanism for last-menti nedy train oi gearingA having a transmitting complete lfrotatione' of Said fixed driving ratio, the gears ofwhich, howultra-decimal dial wheel to said decimal dial"1 ever, differin diameter with respect to the 120 y wheel throughthe intermediary offsaid sup#I corresponding gears, of the irstementioned plementary computi-n,grwheel j train. f 26. The combination with decimal dial 30. The combination with a series of wheel, .of an ultra-decimal dial wheel ar-. dial wheels',v some Voijwhich haveA numbers vuo mally, said last-mentioned train ofgearingA having a fixed driving ratio, the gears of which, however, differ in diameter wlth respect to the corresponding gears of the first-v mentioned train, all of the `gears of said vtrains being perfect natural gears with true pitches, diameters, and numbers of teeth for .the driving ratios of the trams, and all meshing gears having the same pitch so as to drive accurately.

31. The combination with a series of dial wheels, decimal and ultra-decimal, for successive denominations or orders, of alseries of coaxialv gears for driving said dial wheels, varying in' diameter according to the driving ratio to drive the associated dlal'wheels decimally or ultra-decimall a series of receiving gears of the same iameter whether associated with decimal or ultra-decimal dial wheels, a master wheel for driving co axial gears seratim, said irstfmentioned 'series of gears and said receiving gears being paired, one pair for each dial wheel, and the pairs being joined to rotate iny unison, said receiving gears being of a size and form to admit of the uninterrupted engage4 ment of said master wheel therewith in succession irrespective of the relative sizes of the associated first-mentioned gears which varj7 according to the character of the order whleh they are in, that is, whether decimal or ultra-decimal.

32. The combination with a series of dial Wheels having external gear teeth and marked oif in figures arranged from one to ten, of a fraction dial Wheel having external gearteeth, which form a gear of smaller diameter than the .gears of said first-mentioned dial wheels, and marked oli' in units between one and some limitless ythan ten, computing wheels having external teeth for actuating said dial( wheels individually, the teeth of the c'mputin wheel actuating said fraction d ial wheel" orming a gear .of greater diameter than;that f the other wheels, a master wheel withil said computing wheels engaging them aeratm Asa" byunternal teeth thereon, and means for a complete rotation of said fraction-wheel to the next adjacent dial wheel,

- seitsl to-cause a\tenth of arevolution of said next ad] aeent dial wheel.

3.3. The combination with a series of separate computing wheels mounted to rotatel about the-Samev axis, of a master wheel for driving most of said com utingwheels serqtz'lm Vwhen in register tli erewithw and gearing connections to certain of said computingwheels enabling the drive of 'such wheels for forminga line of computing wheels with said master wheel when out of register therewith. 34. The' combination with a series of declmal dial wheelshitving external gear teeth and inscribed at equal distances with the ten digits from one to naught,l correspondin to one to ten, of an ultra-decima1- dial w eel having external gear teeth which form a gear of different diameter than the gears of said first-mentioned dial wheels, 'and marked off into units between one and some other limitv other than ten computing wheels having external teeth i said dial wheels individually, the teeth of orV actuating thecomputing wheels actuating said ultradecimal dial wheel forming a gear of different diameter than that of sald other wheels, a master wheel withinsaidl computing wheels engaging them aem'atm by internal teeth thereon, and -means for carrying a complete rotation y'of said ultra-decimal dial wheel to the next adjacent dial wheel so as'to cause a decimal fraction of a revolution of said next adjacent dialwhe'el.

35. The combination with a series of computing wheels rotating about a. common axis, of 4a master wheel and its shaft ex' tending through said computing wheels to drive certain of said computing wheels seatefm, certain of which computing wheels are provided with internal teeth to mesh with said. master wheel so as to be driven thereby and also acting to enga said shaft to support said computing whee s, certain others of said computing wheels having enlarged internal openings so as to be clear of sald master wheel and said shaft, and a separate support for such of said computing wheels as are clear of said master wheel and said shaft.

36. The combination with a. plurality of primary-computing wheels, of a series of dial wheels of mixed character, some4 decimal and some ultradecimal, a step-by-ste traveling master wheel for drivmg sai computing wheels so as to drive said dial wheels scratzm, driving gears on said com.

puting wheels engaging Adrlvi-ng gears on said dial wheels to enable the drive of said dial wheels from said computing "wheels, and individual gears 'on said computin wheels of diiferent diameter than said first-mentioned gears on with said master wheel out of register with the pitch circles of said first-mentioned gears' on said computing wheels,l so that the master wheel in its travel will 'be free said computing drive or contact,-

from` interference therefrom, irrespective of the relative magnitudes of said -first-mentioned gears.

37. The combination with a series of' dial wheels of mixed character, some decimal and others ultra decimal, of gears on said dial wheels to enable the driving thereof, a, series of computing wheels havin a common axis of! rctation, gears on sai comput- 'ingwheels meshing` with, said first-mentoned gears to drive thezsame :ind to be drivenn thereby for oarry'fover operations, said last-mentioned gears varying in relzv ltive ratio so as4v to enable the decimal and ultrxiideelmal computing actions, lcarryovergersmeshing with seid lest-mentioned gears epting each .from one computing Wheel fo the next higher `computing Wheel,

a masterwheel having' za, relative step-by- 'step movement with respect to said Comput* meer@ ing wheels so as to drive said dial Wheels gemeten, and a second series of` gears on previously mentioned gears on said computing wheels, so es to form avuniform line of drive, irrespective of the variations in'the pitch circles of the previouslymen tioned gears on said computing Wheels.

GUSTAVE O. DEGENERg Witnesses: J'. E. LUCAS,

L. D. BAYLIS.

opll o! this intent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

